Attestation TPM impossible sur Black Ops 7 malgré système et BIOS entièrement à jour

This issue is caused by how the game’s attestation system evaluates TPM and firmware, not by a Windows or Microsoft Defender malfunction. The provided information shows that:

• TPM 2.0 is present, enabled, and provisioned.
• Secure Boot is enabled.
• Windows 11 and firmware are already updated.
• The CODSecureAttestationWizard confirms the system fully meets Call of Duty’s security requirements.

From the available documentation, TPM‑related remediation on Windows focuses on:

1. Ensuring the TPM and system firmware are fully updated.
2. Verifying Windows can correctly communicate with the TPM (no Event ID 14/17 errors, no TPM initialization failures).
3. As a last resort, clearing or re‑provisioning the TPM, or updating/replacing firmware or hardware if Windows itself reports TPM faults.

In this scenario, Windows and the TPM stack are functioning and validated by the game’s own diagnostic tool, so there is no additional Microsoft‑side procedure to “fix” attestation beyond:

1. Confirming that Windows Update and the motherboard vendor’s BIOS/TPM firmware updates are installed (already done).
2. Checking for TPM hardware/firmware errors in the Windows System log (Event ID 14 or 17 from source TPM). If such errors appear, follow the vendor firmware‑update guidance and, if necessary, TPM troubleshooting steps such as clearing the TPM after backing up data.
3. If no TPM errors are logged and Windows tools show the TPM as healthy, the remaining attestation failure is specific to the game’s servers or its attestation logic. In that case, the next step is to open a support ticket with the game publisher, providing screenshots and confirming that Windows and TPM diagnostics are clean.

There is no Microsoft‑documented procedure to override or repair a third‑party game’s TPM attestation when the OS and TPM are already healthy and up to date.

References:

• Event ID 14, 17 log for TPM command failure or non-recoverable error
• Troubleshoot the TPM
• Update Your Security Processor (TPM) Firmware
• Windows enrollment attestation
• BitLocker and TPM: other known issues